fix config-loader.js

src/server/service/config-loader.js

@@ -1,7 +1,7 @@
 const debug = require('debug')('growi:service:ConfigLoader');
 
 const TYPES = {
-  NUMBER:  { parse: (v) => { return parseInt(v) } },
+  NUMBER:  { parse: (v) => { return parseInt(v, 10) } },
   STRING:  { parse: (v) => { return v } },
   BOOLEAN: { parse: (v) => { return /^(true|1)$/i.test(v) } },
 };